y covered with vegetation, the the sand will accumulate. If two such obstructions own weight when the slope is steep. The fact that force of the wind currents continually changes the are near together, a channel is formed between them, the velocity of the wind at the surface on the wind- position… … the direction of the winds exposed to the wind cur- Railroad Men Fighting the Sand Sea in Oregon. The Track Can Be Seen to the Left is generally upstream, the rent, when it may become Partly Buried. fixed by the growth of waves have a notable uni- formity, and at times attain such a height that…
Sand · Motor · Patents · Engine · Railroad · Scientific American · Gas · Reinforced concrete · Oxygenized water · American february · Sand waves · Gas engine · San Francisco · Square inch · Merchant marine · Great deal
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![An illustration from [Articles and clippings relating to British railways] (1898)](https://img.insideoutlibrary.com/img/200/ia-articlesclipping00-225-0.webp)
